APPLICATIONS OF THE THEORY OF HILBERT SPACES WITH RESPECT TO INTEGRAL EQUATIONS. International Journal of Food and Nutritional Sciences, [S. l.], v. 11, n. 9, p. 1588–1595, 2022. Disponível em: https://ijfans.org/index.php/Journal/article/view/9884. Acesso em: 17 jul. 2026.